Positional changes between models. A) Individual residues used in distance determinations shown across the entire trajectories. Each colored ball represents the labeled residue used B) mean averaged distance change for all trajectories for COM defined in text (Figure S2) as CDR2α/β, CDR3α/β, or residues shown in A). C) Residue pairs are indicated representing distances shown between two points in model, line colors correspond to graphs in B), numbers at left correspond to graph numbers at upper right corner of each graph in B. SMX lines on left, no SMX, lines on right. COM are graphs 1 and 2,each with 3 line comparisons. All single residues the remaining graphs. Line to number in C, last compared residue on corresponding numbered graph in B.